(Ictinus is also spelled Iktinos. Callicrates is also spelled Kallikrates.)

The ancient Greek contemporaries Ictinus, Callicrates, and Phidias, are jointly credited in the creation of the Parthenon, in Athens, during the rule of Pericles, circa -440.

Although nothing is known about his life or artistic personality, Iktinos, along with Kallikrates, acted as the architect of the Parthenon, according to Plutarch. He worked on several other temples throughout Greece, including the Telesterion at Eleusis and the Temple of Apollo at Bassai. Kallikrates acted much as Iktinos's contractor, his technical director of works.

Kallikrates worked mainly in Athens during the great building program inspired by Perikles. There has been some suggestion that Kallikrates might have been the official city architect of Athens, and that he was more concerned with the technical and managerial aspects of architecture than with formal design. Thus, he would have assisted Iktinos with the construction of the Parthenon, and with the supervision of building work, but would not have been responsible for aesthetic features.

The most famous artist of his time, Pheidias acted as supervisor of all architectural and artistic works for the Acropolis in Athens. All of the exterior sculpture was produced under his direction, and the enormous statue of Athena which resided within the temple was his work alone. Although much of the building and its decoration have survived, none of Pheidias's personal contributions remain.